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Age: 70.28d Health: 0% Posters: 4 Posts: 5 Replies: 4 Files: 1+1
>> Anonymous 2jun2025(mo)20:32 No.104372 OP P1
So, I did an experiment.
I opened Unyl_is_love.swf in SA Flash Player and did "Create Project", thus getting an .exe file
(player + flash).
Then, I used the "exe2swf" program to extract the .swf file from this .exe, but I got a different
swf than I had originally. The file size was different:
Original flash Unyl_is_love.swf: 364 KB (373,322 bytes)
After conversion swf -> exe -> swf: 367 KB (376,002 bytes)
Then I thought that the "exe2swf" program was not working correctly and used the Flash Convert 1.0
program (unregistered version), and then did the same: did Create Project, got an exe, and now
using Flash Convert 1.0 I extracted the swf from the exe again. And again I got a file of 367 KB
(376,002 bytes), which is 2680 bytes different from the original file.
Why is that?
What software should I use to correctly extract swf from exe?
And I have extracted so many flashes from exe..! I have had Flash Convert 1.0 since 2004... It
turns out that for many years it has been extracting flashes incorrectly.
Why I noticed this: flashes that I took from the DaniMult Web Archive sometimes survived in two
versions - swf and exe. I found that the regular swf versions differed in size from swf extracted
from exe.
It is interesting that despite the different sizes, sometimes swfchan considered them the same (and
VirusTotal - different), sometimes swfchan accepted them as new flashes.
So what software should I use to correctly extract swf from exe?
help.swf (9.5 KiB)
640x480, Compressed (Deflate). 80 frames, 12 fps (00:07).
Ver8, AS1/AS2. Network access: No. Text: Yes.
Bitmaps: No. Audio: No. Video: No.
[find in archive]
>> Anonymous 2jun2025(mo)21:07 No.104374 A P2R1
I've only used "Sothink EXE to SWF Extractor", but that was many years ago.
https://www.sothink.com/product/flashdecompiler/help/extractor.htm
It's part of "Sothink SWF Decompiler" which wasn't free back in the day, I don't know if it has
been made free or not but it doesn't seem like it. They can't have that many customers these days.
I searched and found that you can download it from Internet Archive:
https://archive.org/details/sothink-swf-decompiler-74
Look on the right side for a blue ZIP link.
The main decompiler program seems to be a trial version but included is also EXE2SWFExtractor.exe
inside the Tools folder, which maybe isn't a trial version? I've not checked but if you want to you
can try extracting the .swf file with that program.
>> Anonymous 2jun2025(mo)21:21 No.104375 OP P3R2
It has been experimentally shown that, it seems, Flashes of version 6 do not change the file size
when converting swf -> exe -> swf, while versions 7 and 8 do change the file size. But if take a
swollen flashy and convert swf -> exe -> swf again, the file size does not change anymore, it
remains swollen, but the same.
>>104374
Thank you!
>> Anonymous 4jun2025(we)14:49 No.104398 B P4R3
Did you check compression? The converter switching to a different algorithm would be my first and
only guess.
>> Anonymous 15jun2025(su)10:36 No.104477 C P5R4
I've just found two versions of humor_pong.swf. One is 156678 bytes and was downloaded from /f/,
the other is 157598 bytes and was downloaded from this site's /show/. The difference is 920 bytes.
The swfchan archive, when I search by filesize, resolves both to flash #7440 and serves the 156678
byte version. ffdec says both are 156678 bytes. It turned out that the larger flash had some
trailing data with a JFIF magic number. I copied that to a new file, opened it in an image viewer
and it was a 87x60 image with a crusty 13x13 Flash logo in the middle over a black background.
Could the extractor have kept the executable's icon?
